JP6737740B2 - Steel material joining structure - Google Patents

Description

The present invention relates to a joining structure of steel materials applicable to joining a supporting pile and a supporting column such as a temporary bridge or a pier.

Steel pipes and other steel materials are used as support piles and support columns for temporary piers, etc., and the support columns are joined and extended above the support piles that have been driven into the ground.
All-around welding is known as a method for joining the support pile and the support column, but various mechanical joining methods using a tubular joint socket have been proposed because of the large work required.

Patent Document 1 discloses a joining method in which a joint socket having an inner diameter that is substantially the same as the outer diameter of the upper and lower steel pipes is used, and the joint socket is installed over the abutting portions of the upper and lower steel pipes.
In Patent Document 2, a joint socket having an inner diameter larger than the outer diameters of the upper and lower steel pipes is used, and a plurality of through bolts are provided between the joint socket and the upper and lower steel pipes that are mounted over the abutting portions of the upper and lower steel pipes. A joining method is disclosed in which, after penetrating and screwing, an adhesive is filled into a gap formed between the joint socket and the peripheral surfaces of the upper and lower steel pipes and fixed.
In Patent Document 3, a split joint socket having an inner diameter larger than the outer diameters of the upper and lower steel pipes, a plurality of sets of band members for tightening the joint socket, and a gap between the joint socket and the peripheral surfaces of the upper and lower steel pipes are provided. Using a pair of spacers that are made of hard rubber and have an annular shape, and insert a spacer between them to cover a half-cylindrical socket that is divided into upper and lower steel pipes, then tighten the band material to secure the upper and lower steel pipes. A joining method in which a joining portion is joined flexibly is disclosed.
Patent Document 4 discloses a joining method in which end portions of upper and lower steel pipes are directly spigot-fitted without using a joint socket, and a plurality of through bolts are screwed and integrated into a superposed fitting portion. Has been done.

JP, 10-273912, A JP, 11-222853, A JP, 2001-64961, A JP, 2005-351412, A

The conventional mechanical joining structure of steel pipes has the following problems.
<1> Since it is extremely difficult to drive the support piles to a regular height while maintaining the verticality in a riverbed, the upper portions of the support piles may be displaced from the regular position or tilted and driven.
When the support piles after being driven in are displaced or tilted in the horizontal direction, the conventional joint socket cannot absorb these construction errors.
<2> In the joining methods of Patent Documents 2 and 4, it is necessary to attach a large number of bolts while aligning the troublesome bolt holes, and it takes a lot of time and labor for the joining work and workability is improved. However, the construction cost is expensive.
<3> The joining technique of Patent Document 3 that uses the split joint socket, the band member, and the spacer made of hard rubber has a joining structure that allows displacement of the joining portion, and the joining portion cannot be joined irremovably. ..

The present invention has been made in view of the above points, and an object thereof is to provide at least one of the following steel pipe joining structures.
<1> To be able to join while absorbing the construction error of steel materials.
<2> Workability at the work site should be improved and economical bonding should be possible.
<3> The horizontal position or angle of the steel material can be readjusted after joining.
<4> Applicable to joining various known steel materials.

The present invention adjusts a cylindrical different-diameter cylinder main body that can be installed over the abutting portions of upper and lower steel materials in the vertical direction, and an adjustment gap formed between the different-diameter cylinder main body and the steel material. to the bonding of the steel material to be joined together between the different-diameter cylindrical body and a steel material and lower the top and bottom of the upper steel steel using a joint socket and a plurality of gap adjusting means for positioning the In the structure, the different-diameter cylinder body includes a lower cylinder that can be mounted on the upper portion of the lower steel material, an upper cylinder that can be mounted on the lower portion of the upper steel material, and the lower cylinder and the upper cylinder that are positioned on the coaxial line. and a shelf plate and integrated with interposed boundary, one with either of the previous SL bottom cylinder and the top cylinder, adjustment gap is formed between the peripheral surface of one of the steel of the upper or lower As described above, the inner diameter of either the lower cylinder or the upper cylinder of the different-diameter cylinder body is larger than the inner diameter of the other of the lower cylinder or the upper cylinder, and the lower steel material and the upper steel material are straddled. the joint socket is positioned by the shelf plate is interposed between the lower end of the steel of the upper end and the upper of the lower steel when the fitting socket is exterior, said plurality of gap adjusting means lower range of the adjustment gap The horizontal position and the standing angle of the upper steel material adjusted so as to absorb the construction error of the steel material are maintained.
In another aspect of the present invention, the inner diameter of the lower cylinder of the joint socket is larger than the inner diameter of the upper cylinder, and a plurality of gap adjusting means are disposed in at least a part of the lower cylinder. The adjusting means can press the outer peripheral surface of the lower steel material.
In another aspect of the present invention, the inner diameter of the upper cylinder of the joint socket is larger than the inner diameter of the lower cylinder, and a plurality of gap adjusting means are provided at least in a part of the upper cylinder. The adjusting means can press the outer peripheral surface of the upper steel material.
In another aspect of the present invention, one of the upper cylinder and the lower cylinder of the joint socket is in a dimensional relationship capable of being circumscribed to either the upper or lower steel material.
In another embodiment of the present invention, the plurality of gap adjusting means are a plurality of fixed adjusting bolts screwed to a part of the different diameter cylinder main body.
In another aspect of the present invention, a tensile member is stretched along the axial direction between the outer peripheral surfaces of the upper and lower steel materials and the outer peripheral surface of the joint socket.
In another aspect of the present invention, the lower steel material is any one of a steel pipe, a column material, and an H-shaped steel, and the upper steel material is any one of a steel pipe, a column material, and an H-shaped steel, The lower or upper steel material is a combination of similar steel materials or a combination of different steel materials.
In another aspect of the present invention, the lower steel material is a support pile, and the upper steel material is a support column.

The present invention has at least one of the following effects.
<1> After the joint socket is mounted over the abutting portions of the upper and lower steel materials that are abutted in the vertical direction, a plurality of gap adjusting means such as fixing adjustment bolts are operated, and the different diameter cylinder main body and the steel material are It is possible to absorb the construction error of the lower steel material and to set the upper steel material in a proper position by a simple work of just positioning.
<2> Since the upper and lower steel materials can be firmly joined to each other without penetrating the steel material, workability at the site can be significantly improved as compared with the conventional steel material, and the steel material can be economically joined.
<3> After joining, the horizontal position or tilt of the steel material can be readjusted by operating the plurality of gap adjusting means.
<4> The joint socket can be applied not only to known steel pipes but also to various known steel materials such as column materials and H-section steels, and is highly versatile.

The perspective view of the joint part which fractured|ruptured a part of joint socket which concerns on Example 1. It is explanatory drawing of the joining part of a support pile and a support pillar, (A) is a longitudinal view of a joining part, (B) is BB sectional drawing of (A), (C) is C- of (A). C sectional view, (D) is an explanatory view of another adjustment fixing bolt It is explanatory drawing of the joining method of a support pile and a support pillar, (A) is explanatory drawing of the excision process of a support pile upper part, (B) is explanatory drawing of the suspension process of a support pillar, (C) is the support which completed the joining. Explanatory drawing of pillar repair process A longitudinal sectional view of a joint portion of a steel material according to a second embodiment in which a supporting column is inscribed in and joined to an upper cylinder of a joint socket. A longitudinal cross-sectional view of a joint portion of a steel material according to Example 3 in which the lower cylinder and the upper cylinder of the joint socket are joined by reversing the dimensional relationship. It is explanatory drawing which concerns on Example 4 which changed the steel material of a support pillar, (A) is explanatory drawing which applied the column material, (B) is explanatory drawing which applied the H-section steel. It is explanatory drawing which concerns on Example 4 which changed the steel material of a support pile, (A) is explanatory drawing which applied the column material, (B) is explanatory drawing which applied the H-section steel. It is explanatory drawing which concerns on Example 4 which changed the steel material of a support pile, (A) is explanatory drawing which applied the column material, (B) is explanatory drawing which applied the H-section steel. FIG. 10 is an explanatory view of a joining technique for steel materials according to a sixth embodiment, and is a partial vertical cross-sectional view of a joining portion in which a tensile member is additionally arranged and connected.

Embodiments of the present invention will be described in detail below with reference to the drawings.

<1> Combination of Support Piles and Steel Materials of Support Pillars In the first embodiment, the form in which the support piles 10 and the support pillars 20 are steel pipes of the same kind and the same diameter will be described.

<2> Mechanical Joining Means for Steel Material Referring to FIGS. 1 and 2, in the present invention, a tubular joint socket 30 is used to vertically abut lower support piles 10 and upper support piles. The columns 20 are integrally joined together.
The joint socket 30 has a different-diameter cylinder body 35 with a different diameter that can be mounted over the abutting portion of the support pile 10 and the support pillar 20, and a plurality of gap adjustments for positioning the different-diameter cylinder body 35, the support pile 10, and the support pillar 20. And means.
In this example, the case where the plurality of gap adjusting means are fixed adjusting bolts 34 and 36 screwed to the peripheral surface of the different diameter cylinder main body 35 will be described.

<2.1> Different Diameter Cylinder Main Body The different diameter cylinder main body 35 includes a lower cylinder 31 which can be mounted on the upper portion of the support pile 10 via the first adjustment gap G ₁ , and a second adjustment gap G ₂ below the support column 20. It comprises an upper cylinder 32 which can be mounted via a casing, and a shelf plate 33 which is interposed and integrated at the boundary between the two cylinders 31, 32 located on the coaxial line.
In this example, the lower cylinder 31 and the upper cylinder 32 are formed of steel pipes having different diameters.
The shelf plate 33 is a plate member that integrates the two cylinders 31 and 32 having different diameters so that the load can be transmitted, and is interposed between the abutting ends of the support pile 10 and the support column 20, and is formed of, for example, a steel plate. ..
The shape of the shelf plate 33 is not limited to the illustrated annular shape and may be a rectangular shape.
The shelf plate 33 is horizontally projected toward the inside of the tubes 31 and 32 so that it can be interposed between the abutting ends of the support pile 10 and the support columns 20.

<2.2> Dimensional Relation between Steel Material, Lower Cylinder, and Upper Cylinder If the lower cylinder 31 and the upper cylinder 32 of the joint socket 30 are simply mounted on the support pile 10 and the support pillar 20, respectively, the inner diameter D _{1 of the} lower cylinder 31 an inner diameter _{D 2} of the upper cylinder 32 diameter _{d 1} of the support piles 10 and support post 20, may be the diameter _{d 2} larger than the same diameter as.
In the present invention, the inner diameter D ₁ of the lower cylinder 31 and the inner diameter D ₂ of the upper cylinder 32 do not have the same diameter in order to absorb the construction error (horizontal error, tilt error) of the support pile 10 in the joint socket 30. The diameters are combined so that an adjustment gap is formed between at least one of the lower cylinder 31 and the upper cylinder 32 and the peripheral surface of one of the support pile 10 and the support column 20.

<2.3> Adjustment Gap In this example, the first adjustment gap G ₁ is formed between the peripheral surfaces of the lower cylinder 31 and the support pile 10, and the second adjustment is performed between the peripheral surfaces of the upper cylinder 32 and the support column 20. The form in which the gap G ₂ is formed will be described.
Further, in this example, the inner diameter D ₁ of the lower cylinder 31 is larger than the inner diameter D ₂ of the upper cylinder 32 (D ₁ >D ₂ ) so that the first adjustment gap G ₁ is larger than the second adjustment gap G ₂ . Have a relationship.

<2.3.1> First Adjustment Gap The first adjustment gap G ₁ is a gap for adjusting (correcting) by absorbing a construction error (horizontal position and tilt) of the support pile 10.
The amount of horizontal displacement of the support pile 10 is proportional to the first adjustment gap G ₁ .
The amount of displacement of the standing angle of the support pile 10 is proportional to the first adjustment gap G ₁ and inversely proportional to the total length of the lower cylinder 31.
Therefore, the total length of the first adjustment gap G ₁ and the lower cylinder 31 can be appropriately changed so as to absorb an assumed construction error of the support pile 10.

<2.3.2> Second adjustment gap The second adjustment gap G ₂ is a gap for finely adjusting the horizontal position and tilt of the support column 20 after the support pile 10 and the support column 20 are joined.
The amount of horizontal displacement of the support column 20 is proportional to the second adjustment gap G ₂ .
The angular displacement of the support column 20 is proportional to the second adjustment gap G ₂ and inversely proportional to the total length of the upper cylinder 32.

<2.4> Fixed adjustment bolts The plurality of fixed adjustment bolts 34 and 36 cooperate with the different-diameter cylinder body 35 to adjust the horizontal position and angle of the support pile 10 and the support column 20, and the support after adjustment. It has a function (positioning function) of holding the positions of the pile 10 and the support pillar 20.
Since the plurality of fixing adjustment bolts 34 and 36 do not penetrate the support pile 10 or the support pillar 20, no special processing such as opening bolt holes in the support pile 10 or the support pillar 20 is required.

<2.4.1> Number of fixing adjustment bolts and screwing position It is sufficient that the number of each adjusting fixing bolts 34 and 36 screwed to the cylinders 31 and 32 at equal intervals in the circumferential direction is 3 or more. In consideration of the bending strength required for the joint socket 30, the number is appropriately selected.
Further, the screwing positions of the adjustment fixing bolts 34 and 36 are not limited to the upper and lower portions of the cylinders 31 and 32, but may be additionally provided on the peripheral surface between the upper and lower portions thereof.
In this example, the adjustment fixing bolts 34 and 36 are screwed to the nuts 31a and 32a fixed to the outer peripheral surfaces of the cylinders 31 and 32, respectively. However, screw holes are directly formed in the cylinders 31 and 32. The adjustment fixing bolts 34 and 36 may be screwed together.

<2.4.2> Fixed adjustment bolt with contact plate As shown in FIG. 2(D), a bolt having a contact plate 37 larger than the bolt shaft attached to the tip of the bolt shaft as each adjustment fixation bolt 34, 36. May be used. When the adjustment fixing bolts 34 and 36 provided with the contact plate 37 are used, the fixing force between the support pile 10 and the support pillar 20 can be increased, and the number of adjustment fixing bolts 34 and 36 used can be reduced.

[Joining method]
A method of joining the support pile 10 and the support column 20 using the joint socket 30 will be described with reference to FIG.

<1> Standing of support pile Fig. 3(A) shows a case where the pile head height of the driven support pile 10 is higher than the normal position and is inclined by an angle θ with respect to the vertical line to be driven. There is.
Since it is extremely difficult to drive the support pile 10 in accordance with a predetermined pile head height while maintaining the verticality, in order to correct the pile head, the upper portion of the support pile 10 is indicated by a broken line. Cut horizontally along the design height 11.

<2> Joint Socket Base Assembly The upper end 32 of the support column 20 laid on the ground surface is covered with the upper cylinder 32 to form the base joint socket 30.
The upper cylinder 32 is inserted until the shelf 33 contacts one end of the support column 20, and a plurality of fixing adjustment bolts 36 are tightened to assemble the joint socket 30 to one end of the support column 20.
When the joint socket 30 is grounded, the fixing socket 36 is tightened and temporarily assembled so that the joint socket 30 does not drop by its own weight when the support column 20 is lifted.
In some cases, the joint socket 30 may be temporarily assembled to the lower portion of the support column 20 while the support column 20 is suspended.

<3> Suspension of Support Pillar FIG. 3(B) shows a state in which the support pillar 20 having the joint socket 30 attached to the lower portion is vertically suspended on a crane or the like, and FIG. 3(C) shows the joint socket 30. It shows a state in which the lower cylinder 31 is mounted on the upper portion of the support pile 10.
The support pillar 20 suspended by a crane or the like is moved right above the existing support pile 10, and the support pillar 20 is lowered to cover the lower cylinder 31 of the joint socket 30 on the upper portion of the support pile 10.
When the shelf plate 33 of the joint socket 30 contacts the end surface of the support pile 10, the support pillar 20 is prevented from descending, and the support pillar 20 is extended above the support pile 10.
By interposing the shelf plate 33 between the upper end of the support pile 10 and the lower end of the support pillar 20, the joint socket 30 that is mounted over the support pile 10 and the support pillar 20 can be positioned.

<4> Correction of Construction Error In the present invention, a simple correction operation by the joint socket 30 described below is performed to absorb the construction error of the existing support piles 10 that have been joined, and the support pillar 20 is erected at a regular position. be able to.

<4.1> Adjustment of horizontal position When the upper position of the support pile 10 is horizontally displaced from the normal position, the plurality of fixed adjustment bolts 34 screwed to the lower cylinder 31 are operated in the forward and reverse directions to move the joint socket 30. Displace in the correction direction.
While performing a pressing operation in which the tips of the plurality of fixing adjustment bolts 34 are brought into contact with the outer peripheral surface of the support pile 10 and a retreating operation of the fixing adjustment bolts 34 on the other side, the pressing reaction force of the fixing adjustment bolts 34 causes a joint. The entire socket 30 is horizontally moved toward the correction direction.
The support column 20 inserted in the upper cylinder 32 follows the joint socket 30 and moves horizontally in the correction direction.

<4.2> Angle Adjustment When the support pile 10 is inclined by an angle θ with respect to the regular vertical line, the upper and lower fixed adjustment bolts 34 screwed to the lower cylinder 31 are rotated in the forward and reverse directions. By operation, the angle of the support column 20 together with the joint socket 30 is vertically corrected.
The horizontal positions and angles of the joint socket 30 and the support column 20 can be corrected within the range of the first adjustment gap G ₁ formed between the peripheral surfaces of the lower cylinder 31 and the support pile 10.
For convenience of description, the horizontal position and the angle adjustment of the joint socket 30 with respect to the support pile 10 have been described separately, but in reality, these operations are performed in parallel.

<4.3> Fixation of Support Piles and Lower Cylinder After correction of the horizontal position and angle of the joint socket 30 with respect to the support piles 10, all fixing adjustment bolts 34 are tightened to secure the space between the support piles 10 and the lower cylinder 31. It is rigidly connected so that it cannot be displaced.

<4.4> Fine adjustment of support column When the adjustment amount of the support column 20 is insufficient within the range of the first adjustment gap G ₁ , a plurality of fixed adjustment bolts 36 screwed to the upper cylinder 32 of the joint socket 30 are installed. The horizontal position and the angle of the support column 20 are finely adjusted by rotating in the forward and reverse directions.
Since the joint socket 30 is fixed to the upper part of the support pile 10 by the lower cylinder 31 and the plurality of fixing adjustment bolts 34 so as not to be displaced, a pressing reaction force is obtained from the support pile 10 and the joint socket 30, and the second adjustment gap G is obtained. Within the range of ₂ , the horizontal position and the angle of the support column 20 can be finely adjusted.

<4.5> Fixing of the support pile and the upper cylinder After the correction of the horizontal position and the standing angle of the support pillar 20 is completed, all fixing adjustment bolts 36 are tightened so that the support pillar 20 and the upper cylinder 32 cannot be displaced. Tied to.
After the joint socket 30 is used to complete all the joints between the support pile 10 and the support columns 20, the support columns 20 are separated from the crane or the like.
In this way, after the joint socket 30 is mounted over the abutting portion of the support pile 10 and the support pillar 20, the construction error of the support pile 10 can be prevented by a simple operation of rotating the plurality of fixing adjustment bolts 36. The support columns 20 can be absorbed to stand upright at the proper positions.
Therefore, as compared with the conventional joining structure, workability in the field can be greatly improved and the joining can be economically performed.

[Characteristics of joints]
The characteristics of the joint between the support pile 10 and the support column 20 joined together using the joint socket 30 will be described with reference to FIG.

<1> Compressive axial force A compressive axial force due to the own weight of the supporting column 20 and the overlaid load always acts on the joint between the supporting pile 10 and the supporting column 20.
Since the upper and lower surfaces of the shelf plate 33 of the joint socket 30 are in contact with each other between the opposing surfaces of the upper ends of the supporting piles 10 and the lower ends of the supporting columns 20 which face each other, the compression axial force is equal to the shelf plate. The support piles 10 and the support columns 20 are transmitted to each other through 33.
The compression axial force does not directly act on the lower cylinder 31 and the upper cylinder 32, and similarly does not act on the plurality of fixing adjustment bolts 34 and 36 screwed to the both cylinders 31 and 32.

<2> Bending force When the bending force acts on the joint between the support pile 10 and the support column 20 where the compression axial force always acts, the strength of the joint socket 30 resists the bending force.
Specifically, the bending force can be transmitted between the support pile 10 and the support column 20 through the fixing adjustment bolts 34, 36 and the different diameter cylinder main body 35, and the strength of the joint socket 30 resists the bending force.
Since the plurality of fixing adjustment bolts 34 and 36 screwed onto the peripheral surfaces of the cylinders 31 and 32 at equal intervals contact the outer peripheral surfaces of the cylinders 31 and 32 to restrain the free deformation of the cylinders 31 and 32. Even if a bending force is applied to the different diameter cylinder main body 35, the circular shapes of both cylinders 31 and 32 are retained.
As described above, according to the present invention, the bending force can be transmitted through the joint socket 30 under the condition that the compression axial force acts on the joint, so that a rational and simple joint structure can be obtained.

<3> Re-adjustment after connection Even after the support pile 10 and the support pillar 20 are joined, the support pile 10 and the support pillar 20 are rotated by the turning operation of the fixing adjustment bolts 34 and 36 screwed to the joint socket 30 as necessary. The horizontal position and angle can be readjusted.

<4> Dismantling separation When dismantling a temporary pier, a temporary bridge, etc., the joint between the support pile 10 and the support pillar 20 can be released by a simple operation of loosening the fixing adjustment bolts 34, 36 of the joint socket 30. it can. The joint socket 30 separated and removed can be reused.

Other embodiments will be described below. In the description, the same parts as those in the first embodiment will be designated by the same reference numerals and detailed description thereof will be omitted.

A second embodiment will be described with reference to FIG. 4 in which the lower portion of the support column 20 is inscribed in the upper cylinder 32 and is joined by using a joint socket 30a that is configured to be exteriorizable.

<1> Joint Socket The joint socket 30a includes a lower cylinder 31 that can be mounted on the upper portion of the support pile 10 via the first adjustment gap G ₁ , an upper cylinder 32 that can be mounted on the lower portion of the support column 20, and both cylinders 31. , 32, and a shelf plate 33 which is interposed and integrated at the boundary portion of the two.
The inner diameter D ₂ of the upper cylinder 32 is formed to be the same as or slightly larger than the diameter d ₂ of the support pillar 20, so that the lower portion of the support pillar 20 is inscribed in the upper cylinder 32 and accommodated therein. Has become.
The inner diameter D ₁ of the lower cylinder 31 is larger than the inner diameter D ₂ of the upper cylinder 32 (D ₁ >D ₂ ), and is within the range of the first adjustment gap G ₁ with the horizontal positions of the joint socket 30 and the support column 20. The correction of the angle is the same as in the first embodiment.

<2> Effect of this Embodiment In addition to the effect of the first embodiment, the fixing adjustment bolt 36 of the upper cylinder 32 can be omitted in the second embodiment, so that the manufacturing cost of the joint socket 30a can be reduced.

Although the inner diameter D ₁ of the lower cylinder 31 of the joint socket 30, 30a is larger than the inner diameter D ₂ of the upper cylinder 32 (D ₁ >D ₂ ) in the _{first and second} embodiments, the lower cylinder is described. You may join using the joint socket 30b which reversed the dimensional relationship of 31 and the upper cylinder 32.

<1> Joint Socket Explaining with reference to FIG. 5, in the different diameter cylinder main body 35 of the joint socket 30b, the inner diameter D ₂ of the upper cylinder 32 is larger than the inner diameter D ₁ of the lower cylinder 31 (D ₂ >D ₁ ). In a relationship.
In the third embodiment, the lower cylinder 31 of the joint socket 30b is externally mounted on the upper portion of the support pile 10 and then the lower part of the support pillar 20 is dropped into the upper cylinder 32 to join the support pile 10 and the support pillar 20.
In FIG. 5, the first adjustment gap G ₁ is formed between the peripheral surfaces of the lower cylinder 31 and the support pile 10 and a plurality of fixing adjustment bolts 34 are screwed, but the fixing adjustment bolts 34 are omitted. The cylinder 31 and the peripheral surface of the support pile 10 may be brought into contact with each other to be externally mounted.

<2> Effect of the present embodiment In the third embodiment, since the lower cylinder 31 of the joint socket 30b is fixed to the upper portion of the support pile 10 so as not to be displaced, the reaction force from the support pile 10 and the joint socket 30b. Then, by rotating the plurality of fixed adjustment bolts 36 within the range of the second adjustment gap G ₂ formed between the support column 20, the upper cylinder 32, and the support column 20, the horizontal position and the angle of the support column 20 are obtained. Can be modified.

Although the steel materials forming the support pile 10 and the support pillar 20 are combinations of steel pipes in the first to third embodiments described above, the steel material forming the support pile 10 and the support pillar 20 has a rectangular cross section other than the steel pipe. A column material or an H-shaped steel may be used, and the combination of the steel materials of the support pile 10 and the support column 20 may be a combination of the same kind of steel materials and a combination of different kinds of steel materials.
Below, the combination of the other steel material which comprises the support pile 10 and the support pillar 20 is illustrated.

<1> When the support pillar is a column FIG. 6(A) shows a combination of different steel materials in which a column material in which the support pillar 20 has a rectangular cross section is applied to the support pile 10 made of steel pipe.
In the joining of this example, a joint socket 30c including a lower cylinder 31 having a circular cross section, an upper cylinder 32 having a rectangular cross section, and a shelf plate 33 interposed between the two cylinders 31 and 32 is used.
The support column 20 housed in the upper cylinder 32 of the joint socket 30c may be fixed by a plurality of fixing adjustment bolts 36 shown in the drawing, or may be inscribed in the upper cylinder 32 without using the fixing adjustment bolts 36 and joined. Good.

<2> When the Support Column is H-Shaped Steel FIG. 6(B) shows a combination of dissimilar steel materials in which the support column 20 is an H-shaped steel for the support pile 10 made of steel pipe.
A joint socket 30c similar to that shown in FIG. 6A is used for joining in this example.
The support column 20 housed in the upper cylinder 32 of the joint socket 30c may be fixed with a plurality of fixing adjustment bolts 36 shown in the drawing, or may be inscribed in the upper cylinder 32 without using the fixing adjustment bolts 36 and joined. Good.
When fixing the support column 20 housed in the upper cylinder 32 with a plurality of fixing adjustment bolts 36, the spacers 21 and 21 having the same shape as the space are housed in the recessed space formed between the flange of the H-shaped steel and the web. Then, it is possible to adjust the horizontal position and the angle of the support column 20 made of the H-shaped steel by using the plurality of fixing adjustment bolts 36 provided on the four sides of the upper cylinder 32.

<3> When the support pile is a column FIG. 7(A) shows a combination of different steel materials in which a column material in which the support pile 10 has a rectangular cross section is applied to the support column 20 made of steel pipe.
A joint socket 30d including a lower cylinder 31 having a rectangular cross section, an upper cylinder 32 having a circular cross section, and a shelf plate 33 interposed between the two cylinders 31 and 32 is used for joining in this example.
The support pile 10 housed in the lower cylinder 31 of the joint socket 30d may be fixed by a plurality of fixing adjustment bolts 34 shown in the drawing, or may be inscribed in the lower cylinder 31 and joined without using the fixing adjustment bolts 34. Good.

<4> When the Support Pile is H-Shaped Steel FIG. 7(B) shows a combination of different steel materials in which the H-steel is applied to the support pile 10 for the support column 20 made of steel pipe.
The joint socket 30d described above is used for joining in this example, and the lower cylinder 31 having a rectangular cross section is exteriorly mounted on the support pile 20 made of H-shaped steel, and the upper cylinder 32 having a circular cross section is provided with the support column 20 made of steel pipe. Is interpolated.

<5> Other Joining Example FIG. 8(A) shows a combination of different steel materials in which a column material having a rectangular cross section is applied to the support pile 10 with respect to the support column 20 made of steel pipe, and FIG. 8(B) is a support pile. 10 shows a combination of dissimilar steel materials to which H-section steel is applied.
The combination of the support pile 10 and the support column 20 is the same as that of FIG. 7, but in this example, a lower cylinder 31 having a circular cross section, an upper cylinder 32 having a circular cross section, and a shelf plate 33 interposed between both cylinders 31, 32. It is also possible to join by using the joint socket 30 used in Example 1 equipped with.

<6> Combination with Examples 2 and 3 The combination of the support piles 10 and the support columns 20 is a combination of column materials other than steel pipes or steel materials of the same or different types of H-section steels. , 3 can also be applied and joined.

<7> Effects of this Example In this Example 4, even if the combination of the support pile 10 and the support column 20 is a combination of column materials other than steel pipes or the same or different steel materials of H-section steel, support is provided. By properly using the joint sockets 30a to 30d in which the cross-sectional shape of the lower cylinder 31 or the upper cylinder 32 is changed according to the cross-sectional shape of the pile 10 or the support pillar 20, the standing error of the support pile 10 is corrected and the support pillar 20 is fixed. Can be joined and is versatile.

The plurality of gap adjusting means are not limited to the fixed adjusting bolts 34 and 36 described above.
As another plurality of gap adjusting means, for example, a plurality of wedge bodies that can be inserted into the first adjustment gap D ₁ or the second adjustment gap D ₂ so as to be able to advance and retreat can be applied.
As the other plurality of gap adjusting means, for example, a plurality of shrink-proof bags which are inserted into the first adjusting gap D ₁ or the second adjusting gap D ₂ and which can be shrink-proofed by fluid pressure can be applied.
What is essential is that the plurality of gap adjusting means can adjust the first adjustment gap D ₁ or the second adjustment gap D ₂ to position the different diameter cylinder main body 35, the support pile 10 and the support column 20.

A sixth embodiment in which a plurality of tension members 40 are additionally arranged in the joint socket 30 will be described with reference to FIG.

<1> Tensile Material Tensile material 40 is a tensile member that axially connects between the lower cylinder 31 of the joint socket 30 and the support pile 10 and the outer peripheral surface, and between the upper cylinder 31 of the joint socket 30 and the outer peripheral surface of the support column 20. It is a strong rod-shaped or rope-shaped tension material.
On the outer peripheral surfaces of the lower cylinder 31 and the upper cylinder 32 of the joint socket 30, cylindrical brackets 31b, 32b are provided so as to extend in the circumferential direction, and the outer peripheral surfaces of the support pile 10 and the support pillar 20 are also oriented in the axial direction. Brackets 11 and 21 are projected.
Tensile members 40 are bridged and connected between the brackets 11 and 31b arranged in a pair in the axial direction and between the brackets 21 and 32b.
A pair of tension members 40, 40 arranged in each axial direction constitutes one set, and two or more sets of tension members 40 are equally spaced along the circumferential direction of the joint socket 30 so as not to interfere with the gap adjusting means (not shown). It is installed in.

<2> Example of Tensile Material In this example, a case where the tensile material 40 is configured by a combination of the connecting bolt 41 and the nut 42 will be described.
A base end of the connecting bolt 41 of the tension member 40 is rotatably supported by the brackets 11 and 21 via a support shaft 43 such as a pin or a bolt, and bolt holes formed in the cylinder side brackets 31b and 32b or A nut 42 is screwed onto and tightened at the tip of each connecting bolt 41 penetrating the slit to support between the lower cylinder 31 of the joint socket 30 and the support pile 10 and the outer peripheral surface, and the upper cylinder 31 of the joint socket 30. The space between the outer peripheral surfaces of the columns 20 can be tightened.
The tension members 40 may be connected with their top and bottom directions reversed.

<3> Action of Tensile Material In the present embodiment in which a plurality of sets of tension members 40 are connected between the joint portions of the support pile 10 and the support column 20 that are butted against the joint socket 30, with respect to the joint socket 30. Not only can the support pile 10 and the support column 20 be prevented from slipping out, but since the reinforcing material 40 functions as a tensile and bending strength member at the joint, the tensile strength and bending strength at the joint are significantly improved.

10: Support pile (lower steel material)
20... Supporting pillar (upper steel material)
30... Joint sockets 30a to 30d... Joint socket 31... Joint socket lower cylinder 32... Joint socket upper cylinder 33... Joint socket shelf 34... Lower cylinder fixed adjustment Bolt (gap adjusting means)
35... Different-diameter cylinder body 36... Upper cylinder fixing adjustment bolt (gap adjusting means)
40... Tensile member 41... Connecting bolt 42... Nut D ₁ ... 1st adjustment gap D ₂ ... 2nd adjustment gap

Claims (8)

The tubular different-diameter tubular main body that can be installed over the abutting portions of the upper and lower steel materials in the vertical direction, and the adjustment gap formed between the different-diameter tubular main body and the steel material are adjusted. A joining structure of steel materials for integrally joining between an upper portion of a lower steel material and a lower portion of an upper steel material by using a joint socket provided with a tubular body and a plurality of gap adjusting means for positioning the steel material. ,
The different-diameter cylinder main body includes a lower cylinder that can be installed above the lower steel material, an upper cylinder that can be installed below the upper steel material, and an interposition at the boundary between the lower cylinder and the upper cylinder that are located on the coaxial line. And has an integrated shelf board,
And one of the previous SL bottom cylinder and the top cylinder, to so that the adjustment gap is formed between the peripheral surface of one of the steel of the upper or lower, any lower tubular or top tube of the different diameter tubular body The inner diameter of one of them is larger than the inner diameter of the other of either the lower cylinder or the upper cylinder ,
The joint socket is positioned by interposing a shelf between the upper end of the lower steel material and the lower end of the upper steel material when the joint socket is mounted over the lower steel material and the upper steel material,
The plurality of gap adjusting means holds the horizontal position and the standing angle of the upper steel material adjusted so as to absorb the construction error of the lower steel material within the range of the adjustment gap,
Joint structure of steel materials. The inner diameter of the lower cylinder of the joint socket is larger than the inner diameter of the upper cylinder, and a plurality of gap adjusting means is disposed in at least a part of the lower cylinder. The joining structure of steel materials according to claim 1, wherein the surfaces can be pressed. The inner diameter of the upper cylinder of the joint socket is larger than the inner diameter of the lower cylinder, and a plurality of gap adjusting means is disposed in at least a part of the upper cylinder. The joining structure of steel materials according to claim 1, wherein the surfaces can be pressed. The upper cylinder or the lower cylinder of the joint socket has a dimensional relationship capable of being circumscribed to either the upper or lower steel material. Joint structure of steel materials. The steel material joining structure according to any one of claims 1 to 4, wherein the plurality of gap adjusting means are a plurality of fixed adjusting bolts screwed to a part of the different-diameter cylinder main body. The tensile member is stretched along the axial direction between the outer peripheral surfaces of the upper and lower steel members and the outer peripheral surface of the joint socket. Joined structure of the steel materials described. The lower steel material is any one of a steel pipe, a column material, and an H-section steel, the upper steel material is any one of a steel tube, a column material, and an H-section steel, and the lower or upper steel material is the same kind. The steel material joining structure according to any one of claims 1 to 6, which is a combination of steel materials or a combination of different steel materials. The steel material joining structure according to any one of claims 1 to 7, wherein the lower steel material is a support pile and the upper steel material is a support column.

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